Wheelchair apron board mechanism and wheelchair

Abstract

The utility model discloses a wheelchair apron board mechanism which comprises a frame, a connecting plate, a backrest connecting rod and an apron board, the connecting plate is fixedly connected with the frame, the backrest connecting rod is rotatably connected with the frame, a containing groove is formed in the connecting plate, a movable rod is rotatably installed in the containing groove, and the movable rod is fixedly connected with the frame. The rotating center of the movable rod and the rotating center of the backrest connecting rod are concentrically arranged, the apron board is connected with the free end of the movable rod and can rotate around the movable rod, a limiting block is fixedly connected to the frame, a limiting groove is formed in the top of the limiting block, and the apron board can be driven to deflect by rotating the movable rod so as to be inserted into the limiting groove. The wheelchair apron board mechanism is easy and convenient to operate, and the use experience of a user is greatly improved. The utility model further discloses a wheelchair with the wheelchair apron board mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of wheelchairs, and particularly to a wheelchair skirt plate mechanism and a wheelchair. Background Art

[0002] A wheelchair is a chair equipped with wheels and can assist users in walking. It not only meets the transportation needs of the physically disabled and the mobility-impaired, but more importantly, it facilitates the care of patients by their family members, and enables patients to exercise their bodies and participate in social activities with the help of a wheelchair. With the significant improvement of people's experience of using wheelchairs and the continuous pursuit of user-friendly design by wheelchair manufacturers, more and more wheelchairs with certain functions have gradually appeared on the market. For example, in order to prevent the dresses or skirts of users sitting on the wheelchair from being caught in the wheels, baffles, also known as "skirt plates", are usually installed on both sides of the wheelchair frame. The traditional skirt plates are generally connected to the frame by means of bolt fixation, and this connection method is generally more cumbersome. In order to avoid frequent screwing of bolts, there are also skirt plates connected by the cooperation of plug posts and sockets on the market. This method requires high processing precision and installation position accuracy, and the assembly is relatively difficult. In addition, for a folding wheelchair, after the wheelchair is folded, the skirt plate needs to be disassembled and stored separately, which greatly reduces the user experience. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is that in the prior art, the connection method of the skirt plate is relatively cumbersome and the installation difficulty is large. Based on this, the utility model provides a wheelchair skirt plate mechanism that is convenient for adjusting the position of the skirt plate;

[0004] The utility model also provides a wheelchair with the wheelchair skirt plate mechanism.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a wheelchair skirt plate mechanism, including a frame, a connecting plate, a backrest connecting rod and a skirt plate. The connecting plate is fixedly connected to the frame, the backrest connecting rod is rotatably connected to the frame, a receiving groove is opened on the connecting plate, a movable rod is rotatably installed in the receiving groove, the rotation center of the movable rod is concentric with the rotation center of the backrest connecting rod, the skirt plate is connected to the free end of the movable rod, the skirt plate can rotate around the movable rod, a limiting block is fixedly connected to the frame, a limiting groove is opened at the top of the limiting block, and rotating the movable rod can drive the skirt plate to deflect and insert into the limiting groove.

[0006] Further, a fixing pin is fixedly connected to the frame, and the lower end of the backrest connecting rod is rotatably sleeved on the fixing pin.

[0007] Further, a fixing groove is formed at the top of one end of the frame, the lower end of the connecting plate is fixedly installed in the fixing groove, the fixing pin penetrates through the connecting plate, part of the fixing pin is located in the accommodating groove, and one end of the movable rod is rotatably sleeved outside the fixing pin.

[0008] Further, elastic pieces are fixedly connected to two opposite side walls of the limiting groove. The elastic pieces are in an arc structure. The skirt guard plate can be inserted between the two elastic pieces, and the elastic pieces elastically abut against the skirt guard plate.

[0009] Further, a first through hole is formed in the backrest connecting rod, a second through hole is formed in the skirt guard plate, a fixing bolt is installed between the first through hole and the second through hole, and a fixing nut is installed at one end of the fixing bolt.

[0010] Further, the connecting plate is in a fan-shaped structure, and the accommodating groove is in a fan-shaped structure.

[0011] Further, a bearing is arranged between the skirt guard plate and the movable rod. The inner ring of the bearing is fixedly sleeved outside the movable rod, and the outer ring of the bearing is embedded in the skirt guard plate.

[0012] Further, the cross section of the backrest connecting rod is in an oval structure. The backrest connecting rod is located inside the frame, and the side plane of the backrest connecting rod is attached to the inner plane of the frame.

[0013] The beneficial effects of the present invention are as follows: For the wheelchair skirt guard plate mechanism or the wheelchair of the present invention, the movable skirt guard plate can make the skirt guard plate stand upright on both sides of the frame to protect the dress, or make the skirt guard plate lie down for convenient storage. Compared with the prior art, there is no need to screw bolts, and there is no need for precise matching of plug and socket structures. Moreover, it is not necessary to disassemble and store the skirt guard plate separately when folding the wheelchair. The operation is simple and convenient, greatly improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following further describes the present invention with reference to the drawings and embodiments.

[0015] Figure 1 is a perspective view of the wheelchair skirt guard plate mechanism of the present invention;

[0016] Figure 2 is Figure 1 a partial enlarged view of part A in the wheelchair skirt guard plate mechanism shown;

[0017] Figure 3 is Figure 1 the front view of the wheelchair skirt guard plate mechanism shown;

[0018] Figure 4 isFigure 1 Left view of the wheelchair skirt plate mechanism shown

[0019] In the figure: 10, frame; 11, fixing pin; 12, fixing groove; 13, limiting block; 131, limiting groove; 132, elastic piece; 20, connecting plate; 21, accommodating groove; 22, movable rod; 30, backrest connecting rod; 32, fixing bolt; 33, fixing nut; 40, skirt plate; 41, second through hole Specific implementation mode

[0020] Now, the present utility model will be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present utility model in a schematic way, so it only shows the components related to the present utility model

[0021] Please refer to Figures 1-4 , the present utility model provides a wheelchair skirt plate mechanism, including a frame 10, a connecting plate 20, a backrest connecting rod 30 and a skirt plate 40. The connecting plate 20 is fixedly connected to one end of the frame 10, the backrest connecting pipe 30 is rotatably installed on the frame 10, and the skirt plate 40 is movably installed on the connecting plate 20. Rotating the backrest connecting rod 30 relative to the frame 10 can make the backrest connecting rod 30 in an upright state under normal use or a folded state for storage; in addition, by moving the skirt plate 40, the skirt plate 40 can be made to stand upright on both sides of the frame 10 to protect the dress, or the skirt plate 40 can be made to lie down for convenient storage. Compared with the prior art, there is no need to screw bolts, nor the precise cooperation of plug and socket structures, and it is not necessary to disassemble and store the skirt plate 40 separately when folding the wheelchair. The operation is simple and convenient, greatly improving the user experience

[0022] The backrest connecting rod 30 is generally in a columnar structure, the cross-section of the backrest connecting rod 30 is in an oval structure, the backrest connecting rod 30 is located inside the frame 10, and its lower end is rotatably connected to the frame 10. The side plane of the backrest connecting rod 30 is attached to the inner plane of the frame 10, thus improving the connection stability between the two. In this embodiment, a fixing pin 11 is fixedly connected to the frame 10, and the lower end of the backrest connecting rod 30 is rotatably sleeved on the fixing pin 11. During use, rotating the backrest connecting rod 30 with the fixing pin 11 as the rotation center can adjust the backrest connecting rod 30 between the upright and folded states

[0023] In order to facilitate locking the backrest connecting rod 30 in the upright state, a first through hole (not shown in the figure) is provided on the backrest connecting rod 30, a second through hole 41 is provided on the skirt plate 40, a fixing bolt 32 is installed between the first through hole and the second through hole 41, and a fixing nut 33 is installed at one end of the fixing bolt 32. Tightening the fixing nut 33 can lock the backrest connecting rod 30 on the skirt plate 40, so that the backrest connecting rod 30 remains fixed

[0024] The connecting plate 20 is a fan-shaped structure. A fixing groove 12 is provided at the top of one end of the frame 10. The lower end of the connecting plate 20 is fixedly installed in the fixing groove 12. A fan-shaped receiving groove 21 is provided in the connecting plate 20. A movable rod 22 is rotatably installed in the receiving groove 21. The rotation center of the movable rod 22 is concentrically arranged with the rotation center of the backrest connecting rod 30. The free end of the movable rod 22 (the end away from the rotation center) extends to the outside of the receiving groove 21. The skirt guard 40 is connected to the free end of the movable rod 22. When in use, the movable rod 22 is moved in the receiving groove 21, which can drive the skirt guard 40 to move together, thereby switching the skirt guard 40 between the upright and lying states.

[0025] As a preferred embodiment, the fixing pin 11 passes through the connecting plate 20 so that part of the fixing pin 11 is located in the accommodating groove 21, and one end of the movable rod 22 is rotatably mounted on the outside of the fixing pin 11, thereby ensuring that the movable rod 22 and the backrest connecting rod 30 have the same rotation center.

[0026] The skirt guard 40 is rotatably connected to the free end of the movable rod 22, and the skirt guard 40 can rotate around the movable rod 22. Rotating the skirt guard 40 can make the skirt guard 40 stand upright to protect the user's dress, or make the skirt guard 40 lie down to facilitate the user to fold it. Specifically, a bearing is provided between the skirt guard 40 and the movable rod 22, the inner ring of the bearing is fixedly sleeved on the outside of the movable rod 22, and the outer ring of the bearing is embedded in the skirt guard 40.

[0027] As a preferred embodiment, a limiting block 13 is fixedly connected to the frame 10, and a limiting groove 131 is provided on the top of the limiting block 13. When the skirt guard 40 is stopped and rotated to an upright position around the movable rod 22, the movable rod 22 can be rotated to drive the skirt guard 40 to deflect, so that one side of the skirt guard 40 is inserted into the limiting groove 131. Under the limiting action of the limiting groove 131, the skirt guard 40 can be prevented from rotating around the movable rod 22, thereby ensuring stable operation of the skirt guard 40.

[0028] Furthermore, spring pieces 132 are fixedly connected to the two opposite side walls of the limiting groove 131. The spring pieces 132 are in an arc-shaped structure. The protruding parts of the two spring pieces 132 abut against each other. When the skirt plate 40 is inserted into the limiting groove 131 from top to bottom under the drive of the movable rod 22, the skirt plate 40 will open the spring pieces 132 and insert between the two spring pieces 132. At this time, the spring pieces 132 elastically abut against the skirt plate 40, clamping the skirt plate 40, thereby preventing the skirt plate 40 from easily falling out of the limiting groove 131. In addition, by providing the spring pieces 132 to clamp and fix the skirt plate 40, the processing and installation accuracy of the limiting groove 131 can also be reduced, which is conducive to improving production efficiency. In this embodiment, the spring pieces 132 are stainless steel spring pieces.

[0029] When the fender 40 needs to be folded, first rotate the fender 40 upward with force to disengage it from the limit groove 131, and then rotate the fender 40 around the movable rod 22. After rotating 90°, then rotate the movable rod 22 downward to drive the fender 40 to move downward. At this time, the fender 40 is roughly in a horizontal position and approaches the frame 10. Then, release the fixing between the backrest connecting rod 30 and the connecting plate 20, and rotate the backrest connecting rod 30 downward to gradually approach the frame 10. In this way, the wheelchair can be folded up.

[0030] The present utility model also provides a wheelchair, which includes the above-mentioned wheelchair fender mechanism. Since it has all the technical features of the wheelchair fender mechanism, it has the same technical effects as the wheelchair fender mechanism.

[0031] Inspired by the above ideal embodiments according to the present utility model, through the above description, relevant staff can completely make various changes and modifications without departing from the scope of the present utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A wheelchair skirt guard mechanism, characterized in that: It includes a frame, a connecting plate, a backrest connecting rod and a skirt plate, the connecting plate is fixedly connected to the frame, the backrest connecting rod is rotatably connected to the frame, the connecting plate is provided with a receiving groove, a movable rod is rotatably installed in the receiving groove, the rotation center of the movable rod is concentrically arranged with the rotation center of the backrest connecting rod, the skirt plate is connected to the free end of the movable rod, the skirt plate can rotate around the movable rod, a limiting block is fixedly connected to the frame, a limiting groove is provided on the top of the limiting block, and rotating the movable rod can drive the skirt plate to deflect so as to be inserted into the limiting groove.

2. The wheelchair skirt plate mechanism according to claim 1, characterized in that: A fixing pin is fixedly connected to the frame, and the lower end of the backrest connecting rod is rotatably sleeved on the fixing pin.

3. The wheelchair skirt plate mechanism according to claim 2, characterized in that: A fixing groove is provided at the top of one end of the frame, the lower end of the connecting plate is fixedly installed in the fixing groove, the fixing pin passes through the connecting plate, part of the fixing pin is located in the accommodating groove, and one end of the movable rod is rotatably sleeved on the outside of the fixing pin.

4. The wheelchair skirt plate mechanism according to claim 1, characterized in that: The two opposite side walls of the limiting groove are fixedly connected with spring sheets, the spring sheets are in an arc-shaped structure, the skirt plate can be inserted between the two spring sheets, and the spring sheets are elastically supported on the skirt plate.

5. The wheelchair skirt plate mechanism according to claim 1, characterized in that: A first through hole is formed on the backrest connecting rod, a second through hole is formed on the skirt plate, a fixing bolt is installed between the first through hole and the second through hole, and a fixing nut is installed at one end of the fixing bolt.

6. The wheelchair skirt plate mechanism according to claim 1, characterized in that: The connecting plate is in a fan-shaped structure, and the accommodating groove is in a fan-shaped structure.

7. The wheelchair skirt plate mechanism according to claim 1, characterized in that: A bearing is arranged between the skirt guard plate and the movable rod, the inner ring of the bearing is fixedly sleeved on the outside of the movable rod, and the outer ring of the bearing is embedded in the skirt guard plate.

8. The wheelchair skirt plate mechanism according to claim 1, characterized in that: The cross section of the backrest connecting rod is a waist-shaped structure. The backrest connecting rod is located on the inner side of the frame, and the side plane of the backrest connecting rod is in contact with the inner side plane of the frame.

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